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Fibrin-Stabilizing Factor (XIII) Solubility Screen

Arizona rates for HCPCS 85291

Screens for a shortage of the clotting protein that stabilizes fibrin, the mesh holding a blood clot together, known as factor XIII. A clot formed from the blood sample is placed in a solution and watched: a clot that dissolves points to a deficiency, while a clot that holds together does not. The answer is yes-or-no rather than a measured level or activity figure.

Rates data updated October 2026.

How much does Fibrin-Stabilizing Factor (XIII) Solubility Screen cost?

$7.59

Typical negotiated rate. In Arizona, October 2026.

Insurers have agreed to pay about $7.59 for this service. The price depends on where it is billed: about $5.37 from a physician practice, and about $18.20 from a hospital or other facility.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$5.37$4.79 to $6.92
FacilityA hospital or hospital-owned outpatient department$18.20$8.71 to $29.51

How much rates vary

Facilitymedian $18 · 10th to 90th $6 to $42Professionalmedian $5 · 10th to 90th $4 to $10
$5$10$20$50$100facility $18professional $5

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$7.08
Median
$29.51
Typical High
$46.77
Aetna
Setting
Professional
Modifier
None
Typical Low
$6.17
Median
$6.17
Typical High
$6.17
Ambetter
Setting
Professional
Modifier
None
Typical Low
$6.17
Median
$6.17
Typical High
$6.17
BCBS Arizona
Setting
Facility
Modifier
None
Typical Low
$5.13
Median
$23.44
Typical High
$35.48
BCBS Arizona
Setting
Professional
Modifier
None
Typical Low
$4.79
Median
$7.59
Typical High
$10.96
Cigna
Setting
Facility
Modifier
None
Typical Low
$6.46
Median
$17.78
Typical High
$25.70
Cigna
Setting
Professional
Modifier
None
Typical Low
$6.03
Median
$8.13
Typical High
$13.80
Medica
Setting
Facility
Modifier
None
Typical Low
$6.76
Median
$9.77
Typical High
$100.00
Medica
Setting
Professional
Modifier
None
Typical Low
$3.80
Median
$5.25
Typical High
$7.41
United
Setting
Facility
Modifier
None
Typical Low
$30.20
Median
$30.20
Typical High
$30.20
United
Setting
Professional
Modifier
None
Typical Low
$3.80
Median
$5.25
Typical High
$12.30
2 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$3.02
Median
$3.02
Typical High
$3.02
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$1.23
Median
$1.23
Typical High
$1.23

Where Arizona sits

The same service costs 5.9 times more in Kansas than in Alabama. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

Arizona· 35th of 51

$7.59

KS $32.36AL $5.50

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.